"The tiger shark was still curious as ever and began following me as I started swimming," John said.

"I have to admit that at this point I thought I was gone – four nautical miles out to sea with a huge tiger shark following me – I thought this was it, this is how I’m going to die.

"The shark would disappear into the gloom then suddenly reappear behind me, just keeping pace with me behind my fins.

"Once my heart rate had slowed and I was in a rhythm with my swimming, the shark stopped approaching me and actually started cruising beside me almost like a whale shark.

"For about 500m the shark swam on the same path as me towards the shore and then in a moment banked and disappeared completely as if to say 'you’re okay now I’ll leave you alone'.

John swam for around three hours, and though a full-scale search had been launched to find him, rescuers were unable to see him due to his camouflage wetsuit.

He said: "The shark was gone but I wasn’t sure it wouldn’t return.

"The next part was pure endurance; I had to swim constantly looking around from all angles to make sure there wasn’t an unwelcome visitor, with my speargun pointed behind me to stop anything grabbing my fins."

When he finally reached the shore, John was exhausted. The search plane was out to sea and the boats were too far away to be able to flag down.

He said: "I started walking north hoping to get to the camp site at Cattlewell where I could possibly find someone and get a message to everyone that I was ok. I just thought about my wife and how worried she’d be. I just wanted to tell her I was alive."

After an hour of walking, he heard the plane return and ran to the middle of the beach and waved his arms in the air. The pilot began to circle to signal to the boats that he had been found. John was then reunited with his wife, Emma.

"This was the worst thing I've experienced since the 1998 play off final against Charlton," said.

John would like to thank everyone involved in his rescue – Shark Bay VMR, the Police, Shark Bay Aviation, SES, Fisheries, Ocean Park, Shark Bay Dive and all the volunteers who joined the search.

He added: " I feel extremely lucky to be alive and was blown away by the Shark Bay community's efforts to rescue me.

"You can't be complacent at sea. Even in calm conditions with good weather things can go bad in minutes. I should have put the anchor down and it would have saved a lot of people a lot of time and effort.

"I don't want people to be put off coming to Shark Bay to dive and snorkel. It is safe and beautiful. I was in the water for over 3 hours, the pilot spotted heaps of big sharks in the area and even the 4m tiger that was curious didn't try to bite me.

"If the circumstances were different I would have been stoked to have that experience."

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